bug 862801: New About:home snippets. [r=lucasr]

--HG--
extra : rebase_source : a81ed8090f1e2fdd9ffd02c633db2470ae428413
Bug 885383 - Monocles don't appear when tabbing into an edit field. r=jimm
Bug 896545 - Telemetry on TabStateCache hit/miss. r=ttaubert
Bug 906670 - Can sometimes accessibility focus hidden content from about:home. r=lucasr
Merge m-c to fx-team.
Bug 901294 - Prevent the background thumbnail service from triggering downloads. r=markh
Bug 909274: Scroll when touching search engines. r=lucasr

--HG--
extra : rebase_source : 8afa45be8036fa7dc24f52569481c6af967c43df
Bug 909539: HomeListView should account for dividers if shown. [r=margaret]

--HG--
rename : widget/gonk/HwcUtils.cpp => widget/gonk/HwcComposer2D.cpp
extra : rebase_source : 5d7735e8d0222096a4643ff0702a5f95f5c00cdc
Merge fx-team to m-c.